File: binutils.info, Node: windres, Next: windmc, Prev: nlmconv, Up: Top 13 windres ********** `windres' may be used to manipulate Windows resources. _Warning:_ `windres' is not always built as part of the binary utilities, since it is only useful for Windows targets. windres [options] [input-file] [output-file] `windres' reads resources from an input file and copies them into an output file. Either file may be in one of three formats: `rc' A text format read by the Resource Compiler. `res' A binary format generated by the Resource Compiler. `coff' A COFF object or executable. The exact description of these different formats is available in documentation from Microsoft. When `windres' converts from the `rc' format to the `res' format, it is acting like the Windows Resource Compiler. When `windres' converts from the `res' format to the `coff' format, it is acting like the Windows `CVTRES' program. When `windres' generates an `rc' file, the output is similar but not identical to the format expected for the input. When an input `rc' file refers to an external filename, an output `rc' file will instead include the file contents. If the input or output format is not specified, `windres' will guess based on the file name, or, for the input file, the file contents. A file with an extension of `.rc' will be treated as an `rc' file, a file with an extension of `.res' will be treated as a `res' file, and a file with an extension of `.o' or `.exe' will be treated as a `coff' file. If no output file is specified, `windres' will print the resources in `rc' format to standard output. The normal use is for you to write an `rc' file, use `windres' to convert it to a COFF object file, and then link the COFF file into your application. This will make the resources described in the `rc' file available to Windows. `-i FILENAME' `--input FILENAME' The name of the input file. If this option is not used, then `windres' will use the first non-option argument as the input file name. If there are no non-option arguments, then `windres' will read from standard input. `windres' can not read a COFF file from standard input. `-o FILENAME' `--output FILENAME' The name of the output file. If this option is not used, then `windres' will use the first non-option argument, after any used for the input file name, as the output file name. If there is no non-option argument, then `windres' will write to standard output. `windres' can not write a COFF file to standard output. Note, for compatibility with `rc' the option `-fo' is also accepted, but its use is not recommended. `-J FORMAT' `--input-format FORMAT' The input format to read. FORMAT may be `res', `rc', or `coff'. If no input format is specified, `windres' will guess, as described above. `-O FORMAT' `--output-format FORMAT' The output format to generate. FORMAT may be `res', `rc', or `coff'. If no output format is specified, `windres' will guess, as described above. `-F TARGET' `--target TARGET' Specify the BFD format to use for a COFF file as input or output. This is a BFD target name; you can use the `--help' option to see a list of supported targets. Normally `windres' will use the default format, which is the first one listed by the `--help' option. *note Target Selection::. `--preprocessor PROGRAM' When `windres' reads an `rc' file, it runs it through the C preprocessor first. This option may be used to specify the preprocessor to use, including any leading arguments. The default preprocessor argument is `gcc -E -xc-header -DRC_INVOKED'. `-I DIRECTORY' `--include-dir DIRECTORY' Specify an include directory to use when reading an `rc' file. `windres' will pass this to the preprocessor as an `-I' option. `windres' will also search this directory when looking for files named in the `rc' file. If the argument passed to this command matches any of the supported FORMATS (as described in the `-J' option), it will issue a deprecation warning, and behave just like the `-J' option. New programs should not use this behaviour. If a directory happens to match a FORMAT, simple prefix it with `./' to disable the backward compatibility. `-D TARGET' `--define SYM[=VAL]' Specify a `-D' option to pass to the preprocessor when reading an `rc' file. `-U TARGET' `--undefine SYM' Specify a `-U' option to pass to the preprocessor when reading an `rc' file. `-r' Ignored for compatibility with rc. `-v' Enable verbose mode. This tells you what the preprocessor is if you didn't specify one. `-c VAL' `--codepage VAL' Specify the default codepage to use when reading an `rc' file. VAL should be a hexadecimal prefixed by `0x' or decimal codepage code. The valid range is from zero up to 0xffff, but the validity of the codepage is host and configuration dependent. `-l VAL' `--language VAL' Specify the default language to use when reading an `rc' file. VAL should be a hexadecimal language code. The low eight bits are the language, and the high eight bits are the sublanguage. `--use-temp-file' Use a temporary file to instead of using popen to read the output of the preprocessor. Use this option if the popen implementation is buggy on the host (eg., certain non-English language versions of Windows 95 and Windows 98 are known to have buggy popen where the output will instead go the console). `--no-use-temp-file' Use popen, not a temporary file, to read the output of the preprocessor. This is the default behaviour. `-h' `--help' Prints a usage summary. `-V' `--version' Prints the version number for `windres'. `--yydebug' If `windres' is compiled with `YYDEBUG' defined as `1', this will turn on parser debugging.